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Finding the Third Proportional to 28,292,111 and 42,578,317

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Solution

The third proportional to 28,292,111 and 42,578,317 is: 64,078,395.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292,111 : 42,578,317 = 42,578,317 : x
  2. Step 2: Convert to fraction form
    28,292,111/42,578,317 = 42,578,317/x
  3. Step 3: Cross multiply
    28,292,111x = 42,578,317 × 42,578,317
  4. Step 4: Simplify right side
    28,292,111x = 1,812,913,078,552,489
  5. Step 5: Solve for x
    x = 1,812,913,078,552,489/28,292,111
  6. Step 6: Final answer
    x = 64,078,395.51

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.